Timeline of the Irish Left

This diagram shows the historical development of left political groups and parties since the beginning of the 20th Century in Ireland.

About the timeline

Last updated 10th November, 2021

  • Dashed lines indicate links between groups, either through membership or cooperation.
  • Where an organisation's dissolution date is estimated, it is marked with a double line.
  • Click on grey entries for more information. (Light entries are not currently in the archive).
  • Some names are shortened. Hover over any entry to reveal the full name.
  • Circular entries are concealed for space. Hover over these to show them in full.
  • Colours are for visual clarity, and may not represent the party/group.
Women's Social and Progressive League
Belfast Anarchist Collective
Anti-Fascist Action (Ireland)
Anarchist Workers' Alliance
Red Action
Working Class Action
International Marxist Tendency in Ireland
Friends of Soviet Russia
Dublin Anarchist Group
Anarchist Bookshop Collective
Dublin Anarchist Collective
Class War
Anarchist Federation in Ireland
Revolutionary Anarcha-Feminist Group (RAG)
Cross-Community Labour Alternative
Socialist Women's Group
Belfast Women's Collective
Ballymena Anarchist Group
Syndicalist Solidarity Network
Organise! Anarcho-Syndicalist Federation
Organise! Ireland (Solidarity Federation)
James Connolly Workers' Republican Clubs
Revolutionary Socialist Party
Women Against Imperialism
Workers' Solidarity Movement (WSM)
Belfast Socialist Group
Socialist Party of Ireland (1949)
World Socialist Party
Frontline Collective
Anti-Austerity Alliance (AAA)
International Anti-Imperialist League
Dawn Group
CWI Ireland
Militant Left
Militant Labour
Socialist Party
Dublin Trades Council
National Labour Party
Labour & Trade Union Coordinating Group
Labour & Trade Union Group
Labour Party
Cork Socialist Party
National Progressive Democrats
Liaison Committee of the Labour Left
Socialist Labour Party (SLP)
Cork Unemployed Action Group
Socialist Alternative
People Before Profit (PBP)
Irish National Unemployed Movement
Irish Unemployed Workers' Movement
Socialist Republican Party
Irish Workers' Group
Young Socialists
Socialist Workers' Movement (SWM)
Socialist Workers' Party (SWP)
Socialist Workers' Network (SWN)
Independent Labour Party (UK)
Young Socialists Alliance
Revolutionary Marxist Group (RMG)
Movement for a Socialist Republic
Community and Workers Action Group
United Left
Socialist Party of Northern Ireland
Socialist Labour Action Group
Socialist Labour Alliance
United Labour Party
International Socialists
Campaign for an Independent Left
United Left Alliance (ULA)
Anti-Austerity Alliance - People Before Profit
Solidarity - People Before Profit
People's Democracy
Socialist Democracy
Belfast Socialist Society
Córas na Poblachta
Clann na Poblachta
Left Revolutionary Group
Red Republican Party
Labour Party of Northern Ireland (LPNI)
Labour Party of Northern Ireland (LPNI)
Independent Left
Federation of Labour
Fianna Uladh
Northern Ireland Civil RIghts Association (NICRA)
Labour '87
Labour Coalition
Socialist Environmental Alliance (SEA)
Left Forum
Belfast Labour Party
Northern Ireland Labour Party (NILP)
Labour Party in Northern Ireland
Independent Labour Party (Ireland)
Commonwealth Labour Party
Newtownabbey Labour Party
Co-operative Party in Northern Ireland
International Class War Prisoners Aid (ICWPA)
Independent Labour Group
Sligo/Leitrim Independent Socialist Organisation
An Rabharta Glas - Green Left
Workers' and Unemployed Action Group (WUAG)
Irish Socialist Republican Party
Socialist Party of Ireland (1909)
Communist Party of Ireland (1921)
League for a Workers' Republic (LWR)
Spartacist Group of Ireland
League for a Workers' Vanguard
Workers' League
Ecology Party
Green Alliance
Green Party
Irish Worker League
Communist Party of Northern Ireland (CPNI)
Irish Marxist Society
Northern Ireland Ecology Party
Green Party in Northern Ireland
Fís Nua
Revolutionary Workers' Groups
Communist Party of Ireland
Irish Workers' League
Irish Workers' Party
Communist Party of Ireland (CPI)
Workers' Party of Ireland
Irish Workers' Group
Cork Communist Organisation
Cork Workers' Club
Peace Coalition
Social Democrats
Irish Workers' Union
Irish Communist Group
Left Alliance
Campaign for Labour Representation
Independents for Equality Movement
Independents 4 Change
Irish Communist Organisation (ICO)
British & Irish Communist Organisation (BICO)
Right To Change
Comhairle na Poblachta
Communist Organisation in the British Isles (COBI)
Communist Formation
Aubane Historical Society
Irish Revolutionary Forces (IRF)
Saor Éire (Cork)
Limerick Socialist Organisation
Peace and Neutrality Alliance (PANA)
Anti-Tribute League
Republican Labour Party (RLP)
Socialists Against Nationalism
Democratic Socialist Party (DSP)
New Agenda
Democratic Left
Irish Socialist Network (ISN)
Socialist Party of Ireland (SPI)
Socialist Republican Collective (SRC)
Workers' Revolutionary Party
National Political Front
National Party
National Democratic Party
Irish Republican Socialist Party (IRSP)
Irish Working Farmers' Committee
Irish Committee for a Socialist Programme
Independent Socialist Party (ISP)
Waterford People's Party
Official Republican Movement (ORM)
Saor Éire (1931)
Republican Congress
Sinn Féin (Official)
Sinn Féin The Workers' Party
The Workers' Party
Sinn Féin (Pre 1970)
New Earth
League of Communist Republicans (LCR)
Sinn Féin (Provisional)
Saor Éire
Ripening of Time Collective
Republican Network for Unity
32 County Sovereignty Movement
Revolutionary Struggle
Republican Sinn Féin
Social Democratic & Labour Party (SDLP)
Wolfe Tone Society
The Internationalists
Irish Communist Movement (Marxist-Leninist)
Communist Party of Ireland (Marxist-Leninist) (CPI-ML)
Lasair Dhearg
Progressive Unionist Party